I was on the lower floor and Cooper was on the main floor, and I spotted a stray kibble on the floor. I never leave a stray kibble on the floor because I don’t like DOG SALIVA liberally spread all over said floor, so I picked it up and – decided not to put it in the kibble bin, because the slight noise of taking off the snap-on plastic lid would be sure to summon Cooper to stand around drooling heavily, thus causing more DOG SALIVA liberally spread all over the floor. Instead I put it in the metal scoop next to the bin – thinking as I did so “will he hear this? no of course not, much too faint, plus just a random sound.”
Plink. The instant the kibble hit the scoop with a very faint plink, Cooper shot into motion overhead and rocketed down the stairs. One kibble. Hitting a metal scoop with a tiny plink, on another floor of the house, and around the corner from the stairs. One tiny little plink, and half a second later there’s a dog drooling in front of me.